Not quite sure what you mean by how do i remove do searches ?
There are two possiblities
Oneyour old anti-virus setting is not remove from your PC.
Install crap cleaner (ccleaner) to get rid of the anti-viruses left over setting in the windows registry. http://www.softpedia.com/progDownload/CC...
Two - a virus is preventing you from installing anti-virus
Use another clean PC to download Clamwin portable anti-virus and install it on a USB pen drive. http://portableapps.com/apps/utilities/c...
Document on how to configure ClamWin http://support.real-time.com/open-source...
Start Clamwin anti-virus and update the latest anti-virus definition files.
Select the tools menu bar, set the preferences to remove virus.
Start the infected PC in safe mode by pressing F8 during start up.
Run the Clamwin Anti-virus on the USB pen drive to scan the infected PC.
If you have tried all the various AV Removal Tools to look for expired/leftover remnants of other AVs, I\'d suggest scanning your System for Malware.
Malware will often stop you downloading Security Products.
Download, install, update and scan with each of the two programs below to check for/remove Malware/spyware.
If necessary, do all the above work in Safe Mode with Networking.
To get into Safe Mode with Networking
, tap F8 right at Power On / Startup, and use UP arrow key to get to Safe Mode with Networking
from list of options, then hit ENTER.
Read all info below before starting: http://www.malwarebytes.org/mbam.php
Malwarebytes is as the name says, a Malware Remover!
Download the Free Version from the link above.
Download, install, update and scan once a fortnight. http://www.spybot.info/en/index.html
Spybot Search & Destroy 1.6.2 is a very good, FREE Anti-Spyware Program.
Download, install and update it.
Then SCAN with it.
Update it, and scan your System once a fortnight.